It’s no secret that Mozilla is planning some major UI overhauls for their next major release of Firefox. The new theme is designed to reflect a modernized web browser to illustrate its “power, simplicity, and customizability.” The design team has outlined 4 main goals for the refresh:

Streamline UI elements and reduce visual footprint

Modernize look and feel

Retain visual integration

Maintain cross-platform consistency (Where applicable)

While the new theme has been revealed progressively, it is still a work in progress and the team is constantly making new adjustments and additions. A new timeline has been posted at the project homepage to see that the new changes get the proper amount of attention for implementation. Stephen Horlander, a Visual Designer with the Firefox team, has posted screenshots of the new concepts that they are working on.